Sulfuryl compound, organic electroluminescence device adopting sulfuryl compound, and preparation method thereof
A technology of electroluminescent devices and compounds, which is applied in the direction of electroluminescent light sources, chemical instruments and methods, and electric solid-state devices, and can solve the problems of device efficiency reduction, hole carrier and electron carrier concentration imbalance, and constraints Organic electroluminescence device efficiency and life, to achieve the effect of improving efficiency and life
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[0055] Preparation of tribromobenzene:
[0056] Pour 10mol of benzene into a 500ml three-neck flask, add 200ml of chloroform and 0.4g of iron powder, stir to dissolve, and ice-bath until the system is about 0°C, avoid light, slowly add 35mol of liquid bromine and 80ml of chloroform to mix solution, reacted at room temperature for 10 hours, and a large amount of yellow-brown solid was precipitated. After the reaction was completed, a saturated aqueous solution of sodium bisulfite was added to remove excess unreacted bromine. The crude product was washed twice with saturated aqueous sodium bisulfite solution, dried, and purified by recrystallization to obtain a light yellow-brown powder.
[0057] Preparation of 1,3,5-triphenylbenzene:
[0058] Add 40mol phenylboronic acid, 10mol tribromobenzene, palladium acetate (30mg) and tricyclohexylphosphine (60mg) into the reaction flask, add 100mL refined toluene, 30mL tetraethylammonium hydroxide aqueous solution (mass fraction 20%) a...
Embodiment 1
[0064] Example 1: Preparation of 2,2',2"-tris(3-pyridyl)trithiofluorene.
[0065] The synthetic route is as follows:
[0066]
[0067] Preparation of tribromobenzene:
[0068] Pour 10mol of benzene into a 500ml three-neck flask, add 200ml of chloroform and 0.4g of iron powder, stir to dissolve, and ice-bath until the system is about 0°C, avoid light, slowly add 35mol of liquid bromine and 80ml of chloroform to mix solution, reacted at room temperature for 10 hours, and a large amount of yellow-brown solid was precipitated. After the reaction was completed, a saturated aqueous solution of sodium bisulfite was added to remove excess unreacted bromine. The crude product was washed twice with saturated aqueous sodium bisulfite solution, dried, and purified by recrystallization to obtain a light yellow-brown powder.
[0069] Preparation of 1,3,5-triphenylbenzene:
[0070] Add 40mol phenylboronic acid, 10mol tribromobenzene, palladium acetate (30mg) and tricyclohexylphosphine...
Embodiment 2
[0077] Example 2: Preparation of 2,2',2"-triphenyltrithiofluorene trisulfide.
[0078] The synthetic route is as follows:
[0079]
[0080]
[0081] Preparation of tribromobenzene:
[0082] Pour 10mol of benzene into a 500ml three-neck flask, add 200ml of chloroform and 0.4g of iron powder, stir to dissolve, and ice-bath until the system is about 0°C, avoid light, slowly add 35mol of liquid bromine and 80ml of chloroform to mix solution, reacted at room temperature for 10 hours, and a large amount of yellow-brown solid was precipitated. After the reaction was completed, a saturated aqueous solution of sodium bisulfite was added to remove excess unreacted bromine. The crude product was washed twice with saturated aqueous sodium bisulfite solution, dried, and purified by recrystallization to obtain a light yellow-brown powder.
[0083] Preparation of 1,3,5-triphenylbenzene:
[0084] Add 40mol phenylboronic acid, 10mol tribromobenzene, palladium acetate (30mg) and tricy...
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